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A buffer is ready by mixing 200mL of 0.450 M HCL and 0.500 L of 0.400 M sodium acetate. Explain what is the pH Ka of CH3COOH = 1.8 x 10-5?
Can the concentration of nickel ion be reduced to 1.0 x 10-5 M by precipitation of the nickel ion as nickel hydroxide without precipitating the calcium ion as calcium hydroxide. The Ksp of calcium hydroxide is 6.5x10-6 and the Ksp of nickel(II) hy..
Calculate the mass (in grams) of the product formed when 3.95 of Ba completely reacts. Assume that there is more than enough of the other reactant
how many moles of NH4Cl are necessary to prevent the precipitation of magnesium hydroxide (neglect change in volume due to addition of NH4Cl)? The solubility product for Mg(OH)2 is 1.5× 10-11, and the Kb for ammonia is 1.8 × 10-5.
Find the fugacity coefficient at the reaction conditions and calculate the effect of it on the reaction conversion.
The pressure of 7.0 L of an ideal gas in a flexible container is decreased to one-half of its original pressure, and its absolute temperature is decreased to one-seventh of the original. What is the final volume of the gas
The volume of a gas is 93 mL when the temperature is 91 C. if the temperature is reduced to 0 C without changing the pressure, what is the new volume of the gas
What happens to the solubility of an ionic compound as ionic strength of the solution increases up to ~0.5 M)? Why is there a correlation between the solubility of an ionic compound and the ionic strength of the solution?
2I2 + N2H4 → 4HI + N2 a. How many grams of I2 are needed to react with 36.7 g of N2H4?
What is the pH of a 1.2M solution of sodium nitrite, NaNO2? the Ka for nitrous acid (HNO2) is 4.5x10^-4be as specific as possible and list all the steps
Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective crystal structure
at 710. mm hg a sample of nitrogen gas occupies 625 ml. what volume does the gas occupy if the temperature remains
Write a formula for the conjugate base formed when each of the following behaves as a bronzed acid.
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